Ford car fault codes and warning indicators, with meanings, causes, and step-by-step fixes.
25 models · 5 error codes
On Ford vehicles, P1000 means the onboard diagnostic monitors have not finished running — usually seen after a battery disconnect or a cleared code, not a fault in itself.
On Ford vehicles, P1131 means the upstream heated oxygen sensor on bank 1 is indicating a lean condition / lack of switching — the mixture is reading lean.
On Ford vehicles, P1151 means the upstream heated oxygen sensor on bank 2 is indicating a lean condition — the same lean fault as P1131 but on the other cylinder bank.
On Ford vehicles, P1260 means the Ford PATS anti-theft system has detected a theft condition or an unrecognised key and immobilised the engine.
On Ford vehicles, P1450 means the evaporative (EVAP) system cannot relieve fuel-tank vacuum — excess vacuum is building in the tank.
These codes apply across Ford models, including:
